The second to last paragraph of article is the most important. The mythos of the alternate ending has grown so much in the 19 years since the movie has been released that people ignore its flaws.

The Alternate ending doesn’t fit the movie at all and the folks that claim the theatrical ending is so different from the book make me laugh.

Everything in the movie is different from the book. The only thing that the I Am Legend movie has in common with the book is the title and the name of Smith’s Character.

Every other aspect is different right down to where it all takes place.

The mythos of the alternate ending has allowed people ignore the idiocy of the alternate ending. Why would Smith be allowed to live? If me and a bunch of my buds had a monster who had been terrorizing us for years captured in his torture chamber basement, the torture chamber basement that had dozens and dozens of pictures of my friends that the monster had tortured to death, I would tear him to shreds. I sure as hell would not allow him to live happily ever after.